WordPress.org

Provide users with a range of free video training materials covering basic operations in WordPress. 

The training material covers simple operations like the WordPress editor, pages, posts, plugins and more.

Developers are also able to customise the plugin by adding additional video or static content that can also be available to users in this free edition.

Optionally users can choose to subscribe to a premium service that providers an even larger variety of video training materials.

Videos are not stored in the plugin itself they are read in real time as the user requests a video tutorial, therefore the actual plugin is very small in size.